The nurse is caring for a client with type 1 diabetes mellitus who reports experiencing diaphoresis and shakiness in the early morning hours. The nurse should expect which change in the client's treatment plan?

Scheduling of an oral glusoce tolerance test (OGTT).

An insulin pump to better control the client's blood glucose.

The evening dose of NPH insulin will need to be decreased.

Glucose levels will be tested at bedtime, 0300, and upon awakening.